Update: I purchased the Star (mid-level) system for a double bed. With the on-line coupon (15%), it was still pretty expensive. I rationalized that it can be used in any rig and won't really wear out. The concept/design is ingenious, IMO. Customer service was great, and the components seem to be high quality. It was very easy to put together and customize. We did a mulit-night test sleep on the floor in our S&B to experiment with firmness options.
In the van, I have a steel frame with metal "slats". The head raises, and is split in two sections. I improvised decking, using cardboard (lighter weight) zip tied through grommets at the head, and plywood zip tied through drilled holes below that. I used provided inserts in the pieces at the foot to stiffen that area, since we sit there sometimes. The whole thing is very light weight, and there is no issue with it bending when I raise the head. I did have to cut three of the connecting pieces where the two sides of the head sections split. That was easy to do with scissors, and will not affect future use. The mattress slides easily on this. Glad we have stops on the food of the frame.
The feel is very much like an innerspring mattress, with adjustable firmness. We took one layer of convoluted foam off the bed because we didn't need it with the Froli. After four more nights (this time in the van), we did not have any issues with the foam mattress compressing in the middle. (In the past, this has been a problem after multiple nights no matter what base foam we used.) Our mattress is 3" high density, medium firmness foam (Foam Factory), a convoluted foam topper (Walmart), and a 2" latex topper (Sleep on Latex) with the Froli Star underneath.
Yesterday, we rearranged a couple of the "flowers" to see if a hip pressure point could be reduced on my husband's side, so I guess the jury is still out as to whether there are no more comfort issues. (Honestly, I think it's perfect, but I am much lighter.)
